Families are being asked to check photographs of their visit to Legoland Windsor after two six-year-old girls were sexually assaulted at the theme park.

The offence happened at Castaway Camp playground in Pirate Shores at the resort, between about 12.15pm and 12.30pm on Thursday, August 11.

The offender, who is not known to the victims, is described as a white man, in his teens or early 20s and possibly under 5ft 8ins.

He was wearing dark-coloured slim fitting trousers, a dark-coloured t-shirt, and trainers.

Investigating officer, Detective Inspector Penny Mackenzie of the Child Abuse Investigation Unit, said: "We are appealing for the public’s help to find the offender who sexually assaulted two young girls at Legoland.

"I would ask anyone who visited the Legoland Windsor Resort on Thursday, especially if you went to Castaway Camp in Pirate Shores, to check any photographs from your trip to see if you recognise anyone matching the offender's description.

"Also, if you recognise the offender’s description or have some other information, no matter how insignificant you think it is, we want to hear from you.

"The easiest way to pass us information about this incident is to email us at URN615@thamesvalley.pnn.police.uk with the information you have and a contact telephone number.

"Such offences are extremely rare"

She added: "I would like to reassure the community and visitors to Legoland that such offences are extremely rare and that we are working closely with Legoland to identify the suspect.

"If you do not want to speak directly to the police you can contact Crimestoppers on 0800 555 111."

A spokeswoman for Leogland Windsor Resort said: "On Thursday, August 11 the Legoland Windsor team were alerted to an alleged assault that took place in the Castaway Camp playground.

"Our team members acted swiftly and Thames Valley Police were immediately called. The safety and security of the families enjoying a day out with us is our number one priority.

"We are now working closely with the police to in assisting them with their investigation. Nothing of this nature has ever taken place at the Legoland Windsor Resort before and we are deeply shocked by the incident."